6o6 



INDEX. 



Ligure or ligurian stone, 42 . 



Lilly of compass, 60. 



Lincurius, 42. 



Lines of force (see Field of Force\ 

 Descartes on, 359; Hauksbee on, 

 467. 



Lines of magnetic direction ex'd by 

 R. Society, 412. 



Lines of no variation, world divided 

 on, 204. 



Lister, Dr., on lightning, 575. 



Livio Sanuto on mag. rocks, 204. 



Locke, defines heat as motion, 417. 



Lodestone, (see Magnet), and Greek 

 phil'y, 33; Albertus Magnus on, 

 308 ; Chinese worship of, 80 ; 

 Dioscorides and Galen on, 92 ; 

 disc'y of, after iron, 20; Egyptian 

 knowledge of, 58; Egyptian name 

 for, 28; field of force about, 48; 

 first Chinese knowledge of, 72; 

 first mention of attractive prop- 

 erty, 24; Gilbert's armed, 288; 

 Gilbert's terrella, 277; Gilbert's 

 theory of generation of, 287 ; 

 Greek mystery of, 22; Israelite 

 use of, 29; Lady, in Jonson's play, 

 368; legend of disc'y of, 19; nature 

 of, 19; Patristic writings refer to, 

 90; polarity of, 127; prehistoric 

 knowledge of, 20, 63, 83; repulsion 

 by, 49; rings as amulets, 25; St. 

 Augustine on, 87. 



Lor De, exp'ts on lightning, 588- 



589- 



Louis XIV., endows Royal Acad- 

 emy, 450 ; physical science at 

 court of, 451. 



Louvois, dealings with Royal Acad- 

 emy, 451. 



Lucau, suggestion of lightning pro- 

 tection, 565. 



Lucera, siege of, 165. 



Lucian, amber mentioned by, 16. 



Lucretius, on Bronze age, 20; mag. 

 theory of, 48; on derivation of 

 word "magnet," 25; on filings in 

 mag. field, 50; on jumping rings, 

 49; on mag. field, 48; on "Nature 

 of Things," 47; on Samothracian 

 rings, 24; on vibrating armature, 



49- 

 Ludolff, ignites spirits by elec'y, 



496; shows mercury light to be 



electric, 497. 

 Lully, Raymond, 190. 

 Lychinus, 42. 

 Lychnites, 42. 



Lykeum, Aristotle's, 38. 

 Lyncei, Academy of, 342. 

 Lyncis, 42. 

 Lyncuriuin, 41. 

 Lyngurius, 42. 

 Lynx stone, 41. 



M. 



Magdeburg experiment, 385. 



Magellan, voyage of, 206. 



Magic, Finn, 138; rise of, 95. 



Magnesia, foundation of, 26. 



Magnesians, 25. 



Magnet, (see Lodestone), Albertus 

 Magnus on, 158; artificial, made 

 by Sellers, 446; Bacon's treatise 

 on, 324; compound, 290; de 

 Beauvaison, 158; Dioscorides and 

 Galen on, 92; Cardan on, 249; 

 field of force of, shown by Pere- 

 grinus, 208; flesh, 159; Galileo 

 on, 345; Gilbert regards earth as, 

 276; known in early Britain, 114; 

 Latini on, 162; light, 455; Lu- 

 cretius on derivation of name, 25; 

 medical uses of the, 255; myths 

 of the, 219; Paracelsus' curative 

 use of, 222; Patristic writings on, 

 90; Peregrinus on selection of, 

 169; on testing, 170; on finding 

 poles, 170; Porta on measuring 

 strength of, 238; prehistoric 

 knowledge of, 83; Roger Bacon 

 on, 161; so called by Euripides, 

 24; St. Augustine on, 87; wor- 

 shipped by Chinese, 80. 



Magnetes, tribe of, 26. 



Magnetic, cure for wounds, 372; 

 healing, Browne on, 381; inter- 

 communication, 382; Lady, Jon- 

 son's play of, 368; Nuntii, 373; 

 supposed place of pole, 204 ; 

 Rocks, 313; legends of, 367; Fra- 

 castorio on, 204; Livio Sanuto on, 

 204; Maurolycus on, 204; Oviedo 

 on, 204; Ptolemy on, 203; satura- 

 tion, 290; spectrum, Cabaeus on, 

 353; Descartes on, 362; Wren on, 

 412; statesman, Digges so-called, 

 339; synonymous with Herculean, 

 27. 



Magnetical Animadversions, Rid- 

 ley's, 339. 



Magnetism, and electricity linked 

 by Newton with gravity, 4-9; 

 animal, 372; at end of 1 7th cent'y, 

 448; by earth induction, 289; Des- 

 cartes on, 361; destruction of, by 



